Answer:
n = 112/13 = 8.615
Step-by-step explanation:
(3/8) n + 5n - 30 = (17/8)n - 2
(3/8)n +5n - (17/8)n = 30-2
(13/4)n = 28
n = 28 * 4/13
n = 112/13
n = 8.615
Let
x-------> the number of churros sold
we know that
-----> inequality that represent the situation
Solve for x
Divide by 
both sides
therefore
<u>the answer is</u>
The minimum number of churros that must be sold is 
Answer: x = (1,9]
Step-by-step explanation: If x is all real numbers greater than 1 (simply: x is greater but not equal to 1) then it is 1 < x. And if x is less than or equal to 9 then its x ≤ 9. To translate 1 < x ≤ 9 into interval notation, you need to keep in mind that parentheses are for these symbols: <>. And brackets are for these symbols: ≤≥. With that in mind, your answer is (1,9]. Also, keep in mind that interval notation goes from lowest value number to highest, so you wouldn’t write this notation as [9,1).
Option A, there seems to be no error
For this case, the first thing we should do is write the trinomial.
To do this, we add similar terms.
We have then:
Then, rewriting the trinomial we have:
Then, the trinomial is given by:
Factoring we have:
Rewriting we have:
Answer:
The trinomial factors are given by:
